Artificial pacemaker is required when a person is sufering from

Options

A. Arteriosclerosis
B. Athereosclerosis
C. Irregularity of heart beat
D. Hypertension

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks when an artificial pacemaker is required. A pacemaker is a device that helps regulate the heartbeat.

2. **Analyzing the Options**:
- **Arteriosclerosis**: This is a condition where the arteries become thickened and stiff, which can lead to reduced blood flow. However, it does not directly relate to the need for a pacemaker.
- **Atherosclerosis**: This is a specific type of arteriosclerosis characterized by the buildup of plaques in the arteries. Like arteriosclerosis, it does not directly indicate the need for a pacemaker.
- **Irregularity of Heartbeat**: This condition, also known as arrhythmia, involves abnormal heart rhythms. It can be too fast (tachycardia), too slow (bradycardia), or irregular. This is the primary reason for needing an artificial pacemaker.
- **Hypertension**: This refers to high blood pressure. While it is a serious condition, it does not necessitate a pacemaker.

3. **Identifying the Correct Answer**: The correct answer is "irregularity of heartbeat." An artificial pacemaker is used to correct abnormal heart rhythms, ensuring that the heart beats at a normal rate and rhythm.

4. **Conclusion**: An artificial pacemaker is required when a person is suffering from irregularity of heartbeat (arrhythmia).